diff --git a/package.json b/package.json
index 3dc5184..fb19ea0 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
     "last 2 versions"
   ],
   "devDependencies": {
-    "@wordpress/env": "^8.7.0",
+    "@wordpress/env": "^9.0.0",
     "grunt": "^1.6.1",
     "grunt-contrib-jshint": "^3.2.0",
     "grunt-phpcs": "^0.4.0",